Abstract
Nowadays, the cost of human labor is increasing dramatically in modern society in turn the time in which demands for certain tasks are to be completed is also decreasing. Meanwhile, most people do not have the patience to find out a book from a great number of bookshelves within a vast collection; even if the title of the book has been given. Fortunately, all of books in a library must be collated and organized according to a structure that distinguishes certain topics or genres. As this is a standard procedure for most libraries, this provides the fundamental structure for designing a robot to assist humans in acquiring the books they need. This paper outlines the theories, structure, and model of the robot called "library self-delivery robot (LSDR)," and especially focuses on the signal processing module. Additionally, applicable implementation methods and application aspects will also be discussed briefly.